migrate ui library

lib/ui/icon.js

@@ -0,0 +1,33 @@
+const svgns = 'http://www.w3.org/2000/svg';
+
+function createUse(type, id) {
+    const c = typeof consts !== 'undefined' ? consts : {};
+    const path = c.path || '';
+    const ver = c.resver == null ? '' : `?${c.resver}`;
+    const use = document.createElementNS(svgns, 'use');
+    use.setAttributeNS('http://www.w3.org/1999/xlink', 'xlink:href', `${path}lib/fonts/${type}.svg${ver}#${id}`);
+    return use;
+}
+
+function createIcon(type, id) {
+    const svg = document.createElementNS(svgns, 'svg');
+    svg.appendChild(createUse(type, id));
+    return svg;
+}
+
+function resolveIcon(container) {
+    const svgs = container.querySelectorAll('svg[data-id]');
+    for (let icon of svgs) {
+        const type = icon.getAttribute('data-type');
+        const id = icon.getAttribute('data-id');
+        icon.replaceChildren(createUse(type, id));
+        icon.removeAttribute('data-type');
+        icon.removeAttribute('data-id');
+    }
+    return container;
+}
+
+export {
+    createIcon,
+    resolveIcon
+}